ravengotu

Anyway to interpet code , when engine light comes on. .....or must i take it to lexus and have them look at it. by the way i have a 2000 rx-300 awd if that matters...thanks

Lexmex

This used to be true with the old OBD I system through a series of pushing pedals and looking at lights on the dash.

Our RX300s of course use OBDII, so you will need a scanner.

I would think that this is probably a P1701 error related to air/fuel if you sense nothing else. Could be a gas cap on loose or went through a pocket of bad air (in Mexico City...happens to me a lot). Pull negative battery cable for a few seconds.

1993ES300x

he can also pull the Fuse to reset it, right??? but it's always an good idea to get the code.. go to your local autozone and they do it at no charge..

Lexmex

Yes, he can pull the EFI fuse, a yellow 20 AMP fuse. Easily located by using the diagram on the bottom of the cover of your fuse box.

Pull it out with the keys out of the iginition.

Had to do this last night at the track.

koolaidman

i dont think u could say that. i work in a dealership and i got an idiot service writer who always comes to me for cel's everytime he comes to me he thinks its a 446 when its something else. so who ever said go to autozone and go find out what cel it is. take his advice. either that or make the ecu brain dead then driving it again. if it comes back right away within 15 min its a hard code. if it comes back on in the next week or so. its more than likly an emmision problem

ravengotu

I will try this ...I also should mention that this vehicle was last driven in Penn. and now it was driven for the first time in Ca...would that make a difference

koolaidman

no it wont make a difference. its not a problem with fuel injectoin cars. with carbs thats a different story

ravengotu

Yes i was looking at the fuse panels and i seen one for the obd an the fuel injectors. which one and how long do i have to wait?. Thanks

Lexmex

I should have said p0171 lean error.

If you pull the EFI fuse, it should be immediate as you take it out and put it right back in.

The only way being in a different place, PA vs CA would affect this is in altitude or in climate. However, generally reseting the system once would do the trick.

Koolaidman is right that with carbs this is a much bigger problem and fuel injection systems should adapt, but not always.

I put on a heat shield just two weeks ago and when I fire up the accelerator in the 1/4 mile...p0171 sometimes comes on with a lot of torque and power.

I am actually quite delighted by this...especially at 7,400 feet.

ravengotu

Hi ,yes i went to autozone and they tried to sell me the reader. 200 bucks for the cable with the reader that hooks up to your laptop.....or online they sell the obd2 cable ,,,,, so its time to invest in one.

koolaidman

they check it for free

Lexmex

No...don't invest in one. They have bigger puppies that cost even more...like $500 to $700.

When my light goes on, usually at the track, I just wait until I am done racing that night...pull the fuse...and go home.

Lot's of guys with CAI (Cold Air Induction) systems get this error.

If it keeps coming on...then I go to a mechanic.

You may also have a dirty

However, only code that has ever popped up is again P0171. A very common error.

It is possible you might have a dirty MAF sensor...do a search on CL as some people have posted pictures...easy to remove and clean. Good to do...even if you don't have a problem.

koolaidman

the 1 i use is 2500. my god its woth all the penies i didnt spend on it. lol lexus scanner.